The Energy Company Obligation, known as ECO4, supports qualifying energy-efficiency improvements for eligible households. Its scheduled end date is 31 December 2026, so the remaining period matters to homeowners considering funded work.
Does the deadline guarantee an installation?
No. Funding is subject to eligibility, the supplier\’s scheme arrangements, survey findings, technical suitability, installer capacity and the applicable completion rules. An expression of interest is not a grant approval or a promise that work can be completed before the deadline.
What should you check?
- Whether your household and property meet the relevant eligibility route.
- What evidence is required for income, benefits or any local authority route.
- Which measures are appropriate following an assessment.
- How surveys, approvals, installation and documentation will be managed.
What happens after ECO4?
The wider policy landscape includes the UK Warm Homes Plan and Welsh Government programmes. However, do not assume that a future programme will automatically offer the same measures or eligibility as ECO4. Each scheme has its own funding arrangements and criteria.
What if you do not qualify?
Private installations and other grants may still be options. Depending on your home, a staged plan could begin with insulation or controls, followed by heating or solar. The right approach starts with assessing the property rather than selling a fixed package.
Check funded support options or speak with C&T.
Source: Ofgem ECO scheme overview. Last checked 23 October 2026.